-x-3=-4x-15

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Solution for -x-3=-4x-15 equation:



-x-3=-4x-15
We move all terms to the left:
-x-3-(-4x-15)=0
We add all the numbers together, and all the variables
-1x-(-4x-15)-3=0
We get rid of parentheses
-1x+4x+15-3=0
We add all the numbers together, and all the variables
3x+12=0
We move all terms containing x to the left, all other terms to the right
3x=-12
x=-12/3
x=-4

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